Average Temperature in Slidell by Year

This page contains a list of the average yearly high and low temperatures in Slidell, Louisiana for each year between 1956 and 2023. It is based on NOAA data.

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What Was the Hottest Year Ever in Slidell?

2023 was the warmest year in the history of Slidell, Louisiana. The average daily high temperature was 79.6 °F, and the average low was 62.0 °F.

What Was the Coldest Year Ever in Slidell?

1976 was the coolest year in the history of Slidell, Louisiana. The average daily high temperature was 76.4 °F, and the average low was 53.9 °F.

* click column headers to sort

Year	Rank	High (°F)	Low (°F)
2023	1	79.6	62.0
2022	14	78.2	59.5
2020	6	77.6	61.1
2019	19	77.1	60.2
2018	12	77.7	60.2
2017	3	78.2	60.8
2016	5	78.4	60.5
2015	8	77.9	60.5
2014	62	75.2	57.2
2013	56	75.6	58.5
2012	9	78.1	60.3
2011	31	76.9	58.8
2010	64	75.2	56.8
2008	47	76.9	57.9
2007	39	77.1	58.2
2006	18	78.6	58.7
2005	25	77.7	58.4
2004	27	77.4	58.6
2003	44	76.9	58.0
2002	28	77.2	58.7
2001	37	77.7	57.8
2000	49	77.7	57.1
1999	55	77.4	56.8
1998	4	78.5	60.3
1997	51	76.5	58.3
1996	53	77.0	57.7
1995	24	77.6	58.5
1994	30	77.2	58.6
1993	50	77.7	57.1
1992	45	77.7	57.2
1991	26	77.6	58.4
1990	17	79.6	57.9
1989	48	77.7	57.1
1988	52	77.8	56.9
1987	42	78.2	56.9
1986	15	79.1	58.6
1985	21	78.4	58.3
1984	34	78.0	57.6
1983	65	76.2	55.7
1982	13	79.4	58.3
1981	33	78.6	56.9
1980	32	78.4	57.3
1979	61	76.9	56.1
1978	63	76.6	55.4
1977	60	76.9	56.2
1976	66	76.4	53.9
1975	59	76.8	56.8
1974	54	78.1	56.4
1973	41	77.9	57.3
1972	2	80.5	58.6
1971	10	79.7	58.6
1970	38	78.0	57.4
1969	35	78.4	57.2
1968	57	77.9	56.1
1967	23	79.0	57.2
1966	46	77.2	57.6
1965	7	79.5	59.0
1964	22	78.4	58.1
1963	36	78.4	57.1
1962	16	79.6	58.0
1961	43	77.9	57.1
1960	40	78.1	57.1
1959	29	77.6	58.1
1958	58	77.1	56.7
1957	11	78.9	59.2
1956	20	79.3	58.0

Weather Station Details

Years	Station	Coordinates
1956–2024	Slidell	location